Light metal heel



Sept. 17, 1940. VQN 2,215,237

LIGHT METAL HEEL Filed Jan. 15, 1939 2 Sheets-Sheet 1 Fig. 1

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Sept. 17, 1940.

A. VON HA'Y'N LIGHT METAL HEEL Filed Jan. 13, 1939 2 Sheet-Sheet 2 III/II 'I I/IIII III lnvehiar. fl berlf W by WWI/61 4 31 Patented Sept. 17, 1940 UNITED STATES LIGHT METAL HEEL Albert von Hayn, Bad Homburg vor der Hohe, Germany Application January 13, 1939, Serial No. 250,741 In Germany January 13, 1938 4 Claims.

The present invention relates to light metal heels of the type having a base bearing on the upper part of the shoe. Heels of this kind are known in themselves. They have, however, the drawback that securing these metal heels to the upper part of the shoe causes difficulties, since on knocking in nails into the base bearing on the upper part of the shoe, either the nail does not penetrate into the metal but bends round, or alternatively splitting or bursting of the metal base occurs, especially when the heel has been made in the die-casting process from alloys rich in magnesium.

According to the invention, this drawback is removed by forming grooves for guiding the nails in the base of the light metal heel, which base bears on the upper part of the shoe. The grooves of suitable cross-sectional shape should be so arranged that the points of the nails or pins, which are guided in a tool, strike upon the grooves in the position determined in advance by the tool. With this arrangement, the grooves can either extend in a circle or in a straight line in the longitudinal or transverse direction of the heel or can be provided in any other desired arrangement. The grooves make it possible using the usual nailing on devices, to secure light metal heels to the shoe in the same way as is usual with leather heels. According to the present invention, the light metal heels are preferably made from magnesium alloys.

Several examples of construction of the invention are shown in the drawings; Figures 1-6 being drawn diagrammatically.

Figure 1 is a plan view of a light metal heel with grooves disposed in a circle.

Figure 2 is a cross section on the line 11-11 in Figure 1.

Figure 3 is a plan view of a heel with grooves extending in a straight line in the longitudinal direction.

Figure 4 is a cross section on the line IVIV in Figure 3.

Figure 5 is a plan view of a heel with grooves extending in a straight line in the transverse direction.

Figure 6 is a cross section on the line VIVI in Figure 5.

Figure '1 shows in plan view a heel with grooves extending in the shape of a horse-shoe.

Figure 8 is a vertical section through the heel 5 in Figure 7 on the line AB.

Figure 9 is a plan View of another form of construction with grooves extending in a circle.

Figure 10 is a vertical section through the heel in Figure 9 on the line CD. 10

Figures 11 and 12 are vertical sections through heels having differently shaped grooves.

The grooves 2 in the base la of the hollow light metal heel I may be disposed as desired in adaptation to the devices usual for knocking in nails. According to Figs. 1, 2 9, and 10 they may extend in a circle or extend in a straight line in the longitudinal or transverse direction of the heel (Figs. 3-6). The grooves 2 have, for instance, triangular cross section, so that they act as notches and conduct the point of the nail 4 (Fig. 8) to that point in the base where the wall is thinnest. Instead of the triangular cross section, the grooves may also be given the shape of troughs 2b (Fig. 11) or channels (Fig. 12). On the underside of the heel carries in the usual way a walking strip 6 of leather, rubber or the like, which is held firm by pins or nails 5.

I claim:

1. A heel of light metal for shoes or boots, comprising a hollow body including'a base integral with said body and adapted to bear on the upper part of a shoe or boot to which the heel is intended to be attached, the upper face of said base being provided with grooves for guiding the nails used in attaching the heel, said grooves having a depth smaller than the thickness of the wall of said base.

2. A heel as claimed in claim 1 grooves are circular.

3. A heel as claimed in claim 1 in which said grooves are straight-lined.

4. A heel as claimd in claim 1 in which said grooves are horse-shoe-shaped.

in which said ALBERT voN HAYN. 

